Which Statement About Protein Kinase Cascades Is True

question 173

Multiple Choice

Which statement about protein kinase cascades is true?

• A) Signal amplification occurs only at the initial step in the pathway.
• B) Information received as a signal at the cell membrane can be communicated to the nucleus.
• C) Only the first step allows for the specificity of the process.
• D) The proteins involved in these pathways are generally not subject to regulation.
• E) These pathways function without second-messenger intermediates.

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